19909764

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{41}}^2\times {\mathrm{47}}^1$

素因数の和:146

約数の個数: 108

約数和(自身を含む): 60208512

約数和(自身を除く): 40298748

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 41, 42, 47, 63, 82, 84, 94, 123, 126, 141, 164, 188, 246, 252, 282, 287, 329, 369, 423, 492, 564, 574, 658, 738, 846, 861, 987, 1148, 1316, 1476, 1681, 1692, 1722, 1927, 1974, 2583, 2961, 3362, 3444, 3854, 3948, 5043, 5166, 5781, 5922, 6724, 7708, 10086, 10332, 11562, 11767, 11844, 13489, 15129, 17343, 20172, 23124, 23534, 26978, 30258, 34686, 35301, 40467, 47068, 53956, 60516, 69372, 70602, 79007, 80934, 105903, 121401, 141204, 158014, 161868, 211806, 237021, 242802, 316028, 423612, 474042, 485604, 553049, 711063, 948084, 1106098, 1422126, 1659147, 2212196, 2844252, 3318294, 4977441, 6636588, 9954882, 19909764]

約数ペア:

[(1, 19909764), (2, 9954882), (3, 6636588), (4, 4977441), (6, 3318294), (7, 2844252), (9, 2212196), (12, 1659147), (14, 1422126), (18, 1106098), (21, 948084), (28, 711063), (36, 553049), (41, 485604), (42, 474042), (47, 423612), (63, 316028), (82, 242802), (84, 237021), (94, 211806), (123, 161868), (126, 158014), (141, 141204), (164, 121401), (188, 105903), (246, 80934), (252, 79007), (282, 70602), (287, 69372), (329, 60516), (369, 53956), (423, 47068), (492, 40467), (564, 35301), (574, 34686), (658, 30258), (738, 26978), (846, 23534), (861, 23124), (987, 20172), (1148, 17343), (1316, 15129), (1476, 13489), (1681, 11844), (1692, 11767), (1722, 11562), (1927, 10332), (1974, 10086), (2583, 7708), (2961, 6724), (3362, 5922), (3444, 5781), (3854, 5166), (3948, 5043)]